[Bug 123892] [tap] [patch] No buffer space available

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=123892

Kyle Evans <kevans at freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugs at FreeBSD.org,
                   |                            |kevans at freebsd.org
             Status|Open                        |Closed
         Resolution|---                         |Overcome By Events
           Assignee|bugs at FreeBSD.org            |kevans at freebsd.org

--- Comment #3 from Kyle Evans <kevans at freebsd.org> ---
In the 11 years since this issue failed to receive any feedback (=( apologies),
this looks to be overcome by events.  tunread() (in a tuntap(4) world, mind
you- so fixed in both tun/tap) holds the tun lock, sets TUN_RWAIT, then uses
mtx_sleep(9). tunstart/tunstart_l2 both grab the tun lock and then wakeup(9) if
if_snd is no longer empty.

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